"Exterior Padding"
EXTERIOR PADDING; DISTINCT BUT DETRIMENTAL
by Dr. Ken
In moments of leisure, relaxation in my house, is defined by vintage copies
of STREET AND SMITH COLLEGE FOOTBALL ANNUAL. My small collection is focused
upon the mid-1950s through the early 1970s. This time period approximates my
awareness of college football, my high school and college playing career, and
the eventual graduation or completion of university attendance and concomitant
eligibility of all of the freshman who came into school and who were playing
as I was graduating. In short, its the period of time that has held my deepest
interest in college football and I have more or less commemorated it by saving
or acquiring what was in its day, the epitome of college football literature.
My 1960 and '61 issues are particularly interesting and exciting to view, and
for numerous reasons. There were a great number of players, more than in some
other years, who made an indelible mark in college ball, the professional
game, or both. It was also a two year period which demonstrated a number of
variable helmet designs. Some players still wore what appear to be leather
helmets. Some of these were plastic helmets which retained the leather helmet
shape. Some have what are obviously the more rounded plastic helmets. Still
others are wearing the very helmet that I wore through four years of high
school football.
One of the best things about the photos from 1960 and 1961 (not to mention
the cover of the 1962 regional issue of STREET AND SMITH that was sold in the
states that encompassed the Atlantic Coast Conference) was the Macgregor
helmet with external padding. This specific design had such a distinctive look
that one could not miss it. Few teams en masse adopted this particular helmet,
although a number of players on any specific team might have worn one due to
preference or a decision made by the team's athletic trainer. Duke
University's Jay Wilkinson, son of the great Oklahoma University coach Bud
Wilkinson, was featured on the cover of the aforementioned 1962 issue. Duke
was one of the premiere teams that used the externally padded helmet. In 1960,
Ohio State also implemented its use, and its broad red "stripe" was very
distinctive and instantly recognized. In 1966, Woody Hayes altered the color
pattern, and featured a red helmet body and had the wide padded center colored
silver with black striping. The Buckeyes wore this color combination for
another year before switching to the "all plastic" helmet for the National
Championship '68 season. Iowa too, had almost all of its players in this
distinctive helmet. In upstate New York, the Big Red of Cornell and the
highly respected Colgate University program (yes, Colgate! Think Marv Hubbard
and Mark Van Egan and enough able bodies to block for them) made what I
believe was "a package deal" with Macgregor and wore the externally padded
helmet until the early 1970s. Cornell's Ivy League cohorts Harvard featured
the same padded helmet. In the West, BYU and Fresno State gave representation
with this unique headgear. Last but certainly not least, Lawrence High School
proudly wore an all yellow model, believing that this unusual type of helmet,
used by almost no other full teams on Long Island or in the New York City
area, allowed us a certain ability to hit harder and more effectively.
The September 1, 2001, ASK DR DELRYE section of the HELMET HUT site gave an
excellent explanation of the externally padded helmet, complete enough that I
would like to quote liberally from the given description. The center ridge "is
actually a piece of foam padding which (was) covered in a sheet of synthetic
leather" which was "then glued to the center ridge of the helmet and painted
to match the helmet color." While this description was made regarding the
helmet worn by Willie Lanier and Bobby Bell of the Kansas City Chiefs in the
sixties and early '70s, which was actually formulated by KC equipment
man Bobby Yarborough, it applies closely to the factory produced Macgregor
model of a slightly earlier period of time. The helmet was essentially a
"regular" helmet that had a wide strip of foam down the middle. To further
draw upon DR. DELRYE'S response, it was believed that the external padding
provided protection against concussion type of injury. Later studies and
surveys revealed that when worn in practice, players suffered fewer contusions
and scrapes which might have limited practice or playing time. DR. DELRYE
pointed out the interesting fact that "the entire Oklahoma Sooner team in the
late 1970s and early 1980s wore this type of helmet in practice sessions only.
They chose to wear the conventional non exterior padded shell for actual
games."
Unfortunately, the exterior padded helmet fell into disregard because
studies also indicated that they caused or were more highly correlated with an
increase in the number of cervical spine (neck) injuries. Simple physics
provides our explanation although I don't believe much thought was given to
the "cause of increased injury" at the time. Simply put, external padding does
not make a great deal of sense from the perspective of engineering economy.
Applying the same logic to the newer external helmet coverings, we would note
that the additional 12-14 ounces in weight, and one inch of padding altered
the "feel" of the helmet and gave the wearer a definite awareness that he was
wearing it. Often, the feel of the helmet served as a reminder to remain in
proper hitting position. If we review the HELMET NEWS article, HELMET SAFETY,
PART IV, we are aware that brain and cervical injury can occur from rotational
acceleration which is a product of a number of factors that were clearly
spelled out; moment arm length, mass or weight, and length of time of impact
contact. The additional weight on the helmet shell increases its mass, thus
increasing the potential for injury. Any increase in weight or mass also makes
it more probable that the neck musculature of the player will fatigue faster,
or more probably fall into an incorrect contact position, increasing the
chance of injury. The foam and its covering on the Macgregor externally padded
helmets (and similarly on the external helmet coverings used today) had a
higher coefficient of friction and thus would increase the time of contact
impact. As DR. DELRYE put it, "the exterior padded helmet had the opposite
effect (of a quick helmet deflection) as the crevice shape and leather like
surface of the exterior pad caused the helmet to cling to or grab the object
it was colliding with. Under these circumstances the helmet would absorb
rather than deflect the full force of the collision and transfer this force to
a player's susceptible neck region." With increased time of impact contact,
there would be an expected increase in rotational acceleration and a higher
probability of injury. Thus, the two factors of additional weight and mass of
the helmet and the increase in contact time, both serve to increase rotational
acceleration and potential resultant injury.
Now, if we assume that an extra inch or more of padding would be effective
in reducing the frequency and severity of injury, I would agree with some
researchers who have noted that the padding "is in the wrong place." Making an
analogy to the automobile, if a material was developed that would be
unequivocally protective, would you use it and add three inches in length to
the bumper of the car, or would you put it inside the car (similar to the
present day air bag)? Additional padding, if effective, is best placed within
the confines of the helmet. Again we must keep in mind that there will be a
tradeoff when utilizing additional helmet padding. Any additional weight, as
noted previously, can lead to faster fatigue and slower reaction time when
trying to keep the head from dropping upon contact, or when "pulling it back"
into proper hitting position, so the benefits of added weight have to be
weighed, with no pun intended, against any potential risk of injury. This is a
major consideration. The length of time of actual contact upon impact is one
of the determining factors in the severity of spinal cord injury and eventual
impairment. Decreasing the time of actual impact contact may reduce the
probability of quadriplegia or cord shearing and could be the ultimate
difference between spinal cord tissue destruction, and "spinal shock."
The exterior padding that is added to helmets today reportedly have a
coefficient of friction that is the equivalent of the hard plastic shell.
However, the padding will deform upon contact, increasing the surface area of
the contact surface, and thus increasing the time of impact contact. Time of
impact contact ultimately, is the factor, whether players, coaches, trainers,
or manufacturers were aware of it at the time, that spelled the demise of the
externally padded helmet.